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Ball Helmet

Semicassis bisulcata

Photo: H. Zell · CC BY-SA 4.0

3 dive sites

  1. Troppos, Norman ReefTrinity Beach, Great Barrier Reef, AustraliaBoat · ReefIntermediate+16 mBest Apr–Jul · estimated3 mm
  2. Red RockKoh Tao, ThailandBoat · ReefBeginner-friendly5 m–25 mGood year-round · estimated3 mm
  3. Ko Dok MaiBan Ko Sire, Phang Nga, ThailandReefGood year-round · estimated3 mm

Sources: Species occurrences: OBIS (CC BY 4.0), GBIF.org